Gas-producer.



JV A. HERRICK. GAS PRODUCER.

APPLICATION FILED JULY 24, 190B.

Patented July 25, 1911.

a sums-"mm" WITNESSES:

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tive action.

. several through the apertures C, C and C, by which distribution ismade to the fuel in process of combustion. The pipes D are.

ip- NIT D singles PATENT OFFICE.

JAMES Afnmuucx, oral-1W vonx, N. Y.

. GAS-PRODUCER.

Specification 01' Letters Patent. nulication tiled July 24, 1398. SerialNo. 445,071.

To all whom it may concern:

Be it known that I, Janns'A. Hnamcrz, a

citizen of the United States, residing in the city of New York, countyof New York, 5 and State of New York, have invented certain niprovemcntsin Gas-Producers.

This invention contemplates improvemepts in the manufacture of gas bymeans of a duplex gas producer having; a regenera- Tt 1s designed tomake coke in one producer while the usually waste gases given off duringthis operation are carried down, enrichcd,- purified and made permameatin the other properly coked producer,the operation being reversed whenit becomes esirable to feed fresh fuel, which is charged into theproducer previously effecting the secondary operation. To carry out thisoperation in the most efficient and economical manner, I have devised astructure having characteristic features which will fully appear in thefollowing description and the accompanying drawings in illustrationthereof.

In the drawings, Figure 1 is a sectional elevation of a continuousduplex producer designed for the practice of my invention; Fig. 2 is atransverse sectional view takcn on the line 2-2 of Fig. 1, and Fig. 3 isan irregular vertical sectional view approximately on the line 3--3 ofFig. 2.

I As illustrated in the drawings, the prc V ferred forlnof the producercompriscs the base A having the two cones A. surroumlcd by the circularbasins A. which arc divided by the centraliridgc A. the ridge beinglower thandhmgeneral level of the base so that" there is communicationbetween the basins. 'Iillars A formed in the base below the generallevel thereof, support the 4 producer bodies B centrally above therespective cones A. channels A being formed in the base so as tocommunicate with the basins to receive water therefrom and seal 45 thejoints at the bottoms ofthe bodies.

Within the bottom or ash hopper of each body'are the'twye'rs comprisingthe boxes C radiatingfrom the termihus of a blast piped). The terminusof each pipe I) is centrally disposed with reference to the cor-"responding body and f'discharges intogthe boxes. which" latterdischargeconnected wlth opposite sides of a, valve box Patcnted July 25, 1911;

E and in communication with this valve box are the blower F and -the'gastake off pipe G, thelatt'er delivering to a scrubber (i and the flowbein facilitated by a suction blower G. B ower F and suction blower Gare approximately balanced, that is, the suction blower is of a capacitysuch that the quantity of as 'withdrawnfroni the producers will car adirect relation to the amount of blast forced therein by the blower F.

A simple form of valve, as the butterfly valve- H, is located' withinthe box and operated through an arm H connected therewith and with ahand operated rod H, the valve being designed to place the blower indirect communication with either of the pipes Dand at the same timeestablish communication between the other of these pipes and the gastake off pipe (in The valve box is provided with hollow walls formingchambers E containing water for cooling purposes. 7

To How water over the twyers and cool them, the boxes 0 have formed intheir ridges the notched channels C. and the conical top of thevertical. part I) of the pipe D,

which joins these boxes, is provided with the channel I) whichcommunicates with the channels CH Perforated pipes C lie in the channelsC and through the walls of the'bodies from the circular pi pes C"exterior to the bodies. the pipcsC being connected by branches C with avalve box (l -containing a valve C by which water maybe directed intoeither or both sets of pipes;

A passage Ivconnects the-upper parts of the producers and in thispassage is located the double expanding tube or nozzles J (analogous toa ,Venturi tube in the form extend inwardly illustrated) having mouthscommunicating with'the'respective producer bodies. In the contractedthroat J of this tube are dis posed the outlets or nozzles K of tubes K.which are connected with the valve box L. This box contains'a butterflyvalve M, connected by anarm M with the rod H'uand has communicatingtherewith a pipe N for the intr'oductionof fluid hydro-carbon and steam,so. thatwhen the valve H is setto induce flow of gas from say the lefthand to the right hand producer, the valve M .15 set 'to'induce the flowof steam and fluid hydro-carbon into the right hand pr )(lLlCGI' toaccelerate the action and enrich ti e gas.

-The accelerator serves not only to facilitate containing a valve N,with a steam pipe 0,

which leads to the blower-F and contains a valve 0 between the blowerand the branch N. The pipe N is also connected with a branch Ncontaining a valve N which controls the flow from a funnel Ncommunieating with the branch, oil being dropped into the funnel from apipe P.

A urge pipe Q, is provided with the brunt: es Q, which communicate withthe respective producers near the tops thereof, the pipe having the testcock Q, and the removab e top Q.

Hoppers R, connected with the tops of the respective producers, providemeansfor charging them with fuel.

In operation, coarse clean ashes are filled into both producer bodies soas to entirely surround and cover the twyer structure. Wood and coke arethen placed on the ash beds and i nited; the reversing valves beingasm-ea to provide draft and set vertical so as to "fe d until beds ofhot co ermit air to draw throu h bot, pipes D rom the now fully openlower- F and the purge pipeQ being ermit the escap'e? of sirioketherethrough. Vhen the fires in the respective reducers have been e areprovided, the sealing basins are filled with water to the proper levelto immerse the bottoms of the odi'es, steam blast is gradually added,and soft-coal and cokc are fed to the fires until, the gas evolved willburn with the production of a. flame. The top of the purge pipe isthenclosed, the reversing valves are thrown so as to carry on the initialproduction of as in the producer desired, and the raw gas 1s carriedinto the second producer and downwardly through the bed of hot coke inthe bottom thereof, issuing through the twyers and the corres ondingpipe D to the as take-ofl" ipe G. 'Ihns the rawgas fron t e firstproducer is subjected in the second producer to a treatment whichgasifies the tarry nia-tter carried therewith, breaks up excessive CO,with the formation .of CO, enriches the gas .with production of largeincrements of hydrogen gas, making semiwater gas, and delivers it in surior condition, with less work to be done in the scrubber and with lessdisposition to clo the action of an engine in which it ma 'e used. Afterthis operation has been carried on until the hot coke in the producereffecting the secondazhy operation has become partly cooled, e reversingvalves are thrown and fuel is fed into the producer, which by thereversal of the valves becomes the nrimary producer, from whicl he gasevolved is carried through the coh-v bed of the adjacent producer to thegas lake-off pipe G.,

It is to be understood that fuel is always fed into the producer used asa primary producer so that when it becomes secondary by the reversal ofthe operation, it will contain a bed of hot coke, which acts upon theraw gases delivered thereto from the opposite producer. Hence any tarthat has not reviously been decomposed and changed into permanent gas,as also the soot carried therewith, is intercepted. Any tarry matter ofvalue which lodges in the coke bed and is not gasificd by reason of thelack of free oxygen, is changed into gas upon the reversal of theoperation an' the introduction of oxygen. This mode of o aerationavoidsthe necessity of purging o and making up fresh coke fires in the usualmanner. It provides means for making a high grade and clean semi-watergas with an inferior quality of fuel. lVater gas can be made directly asdistinguished from former operations. There is little leakage orundesirable introduction of air because the operation is carried on bycombined pressure and suction which are approximately balanced.

Having described my invention, I claim:-

box in each of said pro uccrs, conduits connectin one of said assageways with the central portions of oth of said boxes, a valve chamberformed in said passage way, a blast pipe leading into said valvechamber, a gas exit )ipe leading therefrom, and a valve in Sfll'fl valvechamber adapted to conncct one of said producers with said blast pipeand the other of said producers with said gas exit pipe.

2. In apparatus of the classdescribcd, in combination, a pair ofproducers, passage ways inter osed between said producers at the top anbottom portions thereof, a blast distributing and gas collecting box ineach of said producers, a conduit extended between -the lowermost ofsaid passage ways' and the central portion of each of said boxes,

a valve chamber formed in said last mentioned assage way, a blast pipeleading into said vs vs chamber, a gas exit pipe leading therefrom, anda reversible valve located in said valve chamber adapted to connect oneof said boxes with the blast pipe and the other of said boxes with thegas exit pipe.

3. In apparatus ofthe class described, in combination, a pair ofreducers, passage ways connecting said pro ucers top and bot-' tom, 11valve chamber located in the lowermost of' said passa ways, a blastdistributing and gas co leeting box located in each of said producers, ablast pipe leading into said valve chamber, a as discharge pipe leadingtherefrom, conduits connectin the last mentioned of said passage wayswitii the central portions of each of said boxes, a reversible valve insaid valve chamber adapted to connect one of said boxes with said blastpipe and the other of said boxes with the gas discharge pipe, an openended box located in the other passage way and spaced from the wallsthereof, a pair of nozzles located in said box, said nozzles pointing inopposite directions, a source of steam supply, a valve chamber, a pipeleading from said valve chamber to each of.

said nozzles, and a valve in said valve chantber adapted to connect oneof said nozzles with said source of steam supply to the exclusion of theother.

4. In apparatus of the class described, in combination. 'a pair ofproducers, 'passage ways extended between said producers at the top andbottom portions thereof, a valve chamber formed in the lowermost of saidpassage ways, ablast distributing and gas collecting box located in eachof said producers near the lower end thereof, a conduit connecting saidvalve chamber with each of said boxes, a blast pipe leading to saidvalve chamber, a gas discharge pipe leading therefrom, a valve in saidvalve chamber adapted to connect said blast pipe with one of said boxes,and-the other of said boxes with said as discharge pipe, an open endedbox exten ing through the other passa e way, said box being spaced fromthe we] s thereof, means for discharging steam alternately in oppositedirections to said box, a source of steam supply, a valve 'chamber, andmeans in said valve chamber for controlling the flow of steam to saidsteam discharging means. i I

In apparatus of the class described, in combination. a pair ofproducers, a bhu-at. dis" l 'i 'lting and gas t-ollectiugbox located ineach of said prmhu-vrs near the lower per L on thereof. a blast pipe,conduits connect-- lug said blast pipe with each of said blast distribuing and gas collecting boxes, a valve interposed between said blast pipeand said condiiits whereby bh-t may be caused to flow through onethereof, the other thereof bein closed to the blast, a gas discharge conuit connected with said first mentioned conduits, said valve beinadapted to connect one of the latter with the blast distributing and gascollecting box to which the blast has been shut off, a passage wayconnecting the upper portion of said producers, an open ended boxextending through said assage way, a pair of nozzles located. in sandbox and opening in opposite directions, means for discharging steamthrough said nozzles, mechanical means for forcing a blast through saidblast pipe, and mechanical means for withdrawing'gas through said asdischarge pipe.

6. n apparatus of the class described, in combination, a pair ofproducers, an apertured box located in the lower portion of each of saidproducers having a plurality of radially extending legs, a blast pipe, aconduit connecting said blast pipe with each of said boxes adjacent thepoint of jointure of said legs, a gas discharge conduit connected withsaid last mentioned conduit, means whereby blast may be forced throughone of said boxes to the exclusion of the other and whereby gas may flowfrom the other of said boxes to said gas exit conduit, a, blower forforcing the blast through said blast pipe, and a suction device forwithdrawing g'as through said gas exit conduit.

7. In apparatus of the class described, in combination, a pair ofproducers, passage ways connecting the upper and lower ends of saidproducer, a blast pipeleadmg to one of said passage ways, a gas exitpipe leading therefrom, means for shutting off the flow of blast to oneof said producers and permitting a flow of gas from the other. :1 gasdistributing device in each of said producers, means for dischargingwater upon each oi said gas distributing devices. and means foralternately rendering said water distributing means operative.

in witness whereof l have hereunto set. my name this llth day of July,HitiH, in the presence of the subscribing witnesses.

JAMES A. lll'lltltltlh'. \Vitnesses Rom-arr James l'humn', Jos. r.Dunn-1', Jr.

